Bass Mode: As a bass tuner, the GA-1 offer support for 5 and 6 string basses.

Guitar Mode: As a guitar tuner, the GA-1 offer support for 7 string guitars.

Quinta Flat Tuning mode lets you tune 1--5 semitones flat.

Sound Out can produce a reference tone from the internal speaker.

Auto Power Off function conserves battery life.

Approximately 100 hours of continuous use.

Ultra-compact LCD needle-style dedicated Guitar and Bass Tuner

High accuracy and superb functionality have made Korg guitar and bass tuners the worldwide favorite. The GA-1 is the latest addition to our best-selling GA series of tuners. With even more features, like a pitch reference tone and quinta-flat tuning, the GA-1 Guitar Tuner packs basic functionality and convenient tuning functions into an ultra-compact body.

Sound Out - internal speaker provides a reference pitch

In addition to visual tuning via meter, the GA-1 Guitar Tuner/Bass Tuner can play reference pitches from its internal speaker (Sound Out) for tuning by ear. Each press of the Sound switch will cycle the output sound through 7B->6E->5A->4D->3G->2B->1E in the GA-1’s Guitar Tuner mode, or LB->4E->3A->2D->1G->HC in GA-1’s Bass Tuner mode.

Quinta Flat tuning mode -- a world-wide first!

The GA-1’s Quinta Flat Tuning mode supports the lowered tunings used in heavy metal styles to give more weight to the sound. Until now, dedicated guitar tuners have supported a maximum of only four semitones below standard pitch, but the GA-1 gives you five steps of flatted tuning, extending as far as five semitones below standard pitch, and supporting even super-long scale guitars that are five frets longer than conventional guitars.

Auto Power Off function

If you leave the unit powered-on for 20 minutes without performing any operation, the Auto Power Off function will turn the power off automatically, avoiding unnecessary battery consumption.

Approximately 100 hours of continuous use

Low-power consumption design allows an amazing 100 hours (approximate) of continuous battery life (A4 continuous input, Meter mode, zinc-carbon batteries).
* Even if the pitch is within the detection range, detection may not be possible for instrumental sounds that contain a large number of overtones or have a rapid decay.